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38454280454 = 2293191334303
BaseRepresentation
bin100011110100000011…
…011100000100000110
310200020221111211220102
4203310003130010012
51112223243433304
625355440404102
72530634663552
oct436403340406
9120227454812
1038454280454
1115343491077
127552316632
13381aa73305
141c0b1a6862
151000e5ad1e
hex8f40dc106

38454280454 has 16 divisors (see below), whose sum is σ = 57910228992. Its totient is φ = 19150943808.

The previous prime is 38454280411. The next prime is 38454280531. The reversal of 38454280454 is 45408245483.

It is a super-2 number, since 2×384542804542 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38454280399 and 38454280408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103867 + ... + 1138169.

It is an arithmetic number, because the mean of its divisors is an integer number (3619389312).

Almost surely, 238454280454 is an apocalyptic number.

38454280454 is a deficient number, since it is larger than the sum of its proper divisors (19455948538).

38454280454 is a wasteful number, since it uses less digits than its factorization.

38454280454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36511.

The product of its (nonzero) digits is 2457600, while the sum is 47.

The spelling of 38454280454 in words is "thirty-eight billion, four hundred fifty-four million, two hundred eighty thousand, four hundred fifty-four".

Divisors: 1 2 293 586 1913 3826 34303 68606 560509 1121018 10050779 20101558 65621639 131243278 19227140227 38454280454